Related Experiment Videos
[False postvoid residual volume diagnosed by videourodynamics]
M Musquera Felip1, C Errando Smet, M Prados Saavedra
1Unidad de Urología Funcional y Femenina, Servicio de Urología, Fundació Puigvert, Barcelona.
Actas Urologicas Espanolas
|January 26, 2005
Summary
A young male with bilateral vesicoureteral reflux initially suspected of non-neurogenic bladder-external sphincter dyssynergia experienced persistent residual urine volume. Videourodynamic assessment revealed this was a false residual volume caused by refluxed urine voiding back into the bladder.
Area of Science:
- Urology
- Pediatric Urology
- Diagnostic Imaging
Background:
- Bilateral vesicoureteral reflux (VUR) is a significant condition in pediatric urology.
- Urodynamic studies are crucial for evaluating bladder function and identifying voiding dysfunction.
- Non-neurogenic bladder-external sphincter dyssynergia (NB-ESD) can cause urinary retention and elevated post-void residual volumes.
Observation:
- A young male patient presented with bilateral VUR.
- Initial urodynamic findings suggested NB-ESD, leading to a residual urine volume.
- Despite successful biofeedback treatment for dyssynergia, residual volume persisted.
Findings:
- Videourodynamic assessment provided a definitive diagnosis.
- The persistent residual volume was identified as a 'false residual volume'.
- This false residual volume resulted from the voiding of refluxed urine from the ureters back into the bladder.
Implications:
- This case highlights the importance of advanced diagnostic techniques like videourodynamics in complex urological cases.
- Accurate diagnosis of false residual volume is critical for appropriate management and avoiding unnecessary interventions.
- Understanding the mechanisms of urinary retention in VUR patients can improve treatment strategies.